20/03/2012 07:51 GMT | Updated 22/05/2015 10:12 BST

Hot Or Not: Katy Perry's Fringe Wiglet

Katy Perry arrived at the BBC Maida Vale studios in London yesterday (19 March) sporting a new fringe to go with her current blue hairdo.

Hot or not: Katy Perry's fringe wiglet Photos: FilmMagic/Getty

Or at least we thought it was a new fringe for a couple of seconds, then we realised Katy was helpfully demonstrating the perils of inadvertantly exposing your new fringe as a fake through failure to colour match your roots.

Hot or not: Katy Perry's fringe wiglet Photo: FilmMagic

It looks like the blue hairpiece incorporates a fringe (about which we are trying not to use the phrase "bangs trauma") and some longer strands of hair designed to blend the wiglet in to her actual hair.

Sadly the latter is fighting a losing contest because if Katy's current root situation. If she'd debuted this fringe look atop freshly dyed hair she could probably have gotten away with it, but as it is, the front portion of her head is true blue through and through while the rest is a little lighter and with visible regrowth.

Hot or not: Katy Perry's fringe wiglet Photo: FilmMagic

We're rather assuming that Katy doesn't actually give a fig about any of this, but in case you were planning on wearing a fringe wiglet it's a handy warning of the perils of not matching your colours.